Tire-inflating pump.



l. HEELEY. TIRE NFLATING PUMP.

APPLICATION FILED APH. i3! 1915.

Patented Feb. 20, 1917;

UNITED STATES PAT] oEEioE. l

.fosEPH HEELEY, or WIGAN, ENGLAND. V

TIRE-INFLATING Pour.

Application filed April 13, 1915. Serial No. 21,014.

To all whom it may concern:

Be it known `that I, JOSEPH HEELEY, a subject of the King of GreatBritain, residing at Wigan, in the county of Lancaster, in the Kingdomrif' England, have invented certain new and useful Improvements inTire-Inflating Pumps, of which the following is a specification.

In tire infin-ting pumps as hitherto made lthe action is pulsative` andthe air is delivered into the tire in jerks. The object of the presentinvention is to provide a portable hand operated tireinfiating pump soarranged that the delivery of' a-ir into the tire shall be substantiallycontinuous.

It comprises a pair of compression cylinders mounted on a casing whichserves the double purpose of an air receiver and a base plate, andworking pistons in `each cylinder coupledV by connecting rods to apivoted hand lever at diametrically opposite sides of the pivot, withthe object of making the pistons effective alternately each-upon theirdownstroke, to charge the air receiver with compressed air and enablesuch compressed air to be delivered in a continuous streamV from thereceiver into the tire, thus expeditingr` the inflation Vof tires.

In the accompanying drawing- Figure 1 is a sectional elevation of my twocylinder compressor,

Fig. 2 a plan view, and

Fig. 3 is a view showing` the `application of the pump to a motor car.

`A are the t'wo vertical air-pump cylinders lcast in a piece with an airreceiver C at'the bottom, which latter acts as a base-plate or bedplate, and forms the bottom of each cylinder. Each'. cylinder A which is-open at top, has a piston Dworked from a single lever or handle E, andthe-said pistons D are effective alternately each upon its down stroke.At the Hat bottom of veach piston D is fitted a suitable cup leather For the like working against the bore of the cylinder A, for preventingleakage of air between the piston and the cylinder in which itv works.

This leather F is clamped to the bottom of its piston by a plate or diskG, with the leather interposed between. Each piston D has an aperture Hthrough it, covered by a flexible valve T, the said plate or disk Gbeing recessed so as to receive the said valve and enable it to liefiush with the bottoni thereof when closed, th'e valve I being securedby a pin J screwed into the grid on Specication of Letters PatenPatented Feb. 2o, 1917.

which the "alve is seated. This valveV opens duringthe ascent of thepistons D, but in stantly assumes its place upon its seat during the conpression stroke. The top side of the recei ver C directly under eachpiston, has delivery apertures Kfor the air com# pressed by the pump,and each set of apertures is co1 trolled from below by a valve L` heldnormally against its seat by a spring T, so as not tc formunyobstruction to the pi tons comin; fiat against the bottom of therespective cylinders A, and ohviating anyl space or clearance between.The valve L which is located inside the air receiver is by means of itsstem guided in a carrier U. This carrie." which is in the form of asocket with a flan ge at the lower end, is screwed into a hole in theunder side of the receiver C so as to r roject up into the insidethereof, while the fl: nge fitsa recess in the underside of the base ofthe receiver. Thqspring T is spigoted int o a recess in the valve stem,and

a connecting ,f rod N to the hand lever E, one

on each side of the pivot O on which the handle osci lates, this pivotbeing mounted in a standard Q between .the cylinders. Y

is a. plate b )lted to the top of the cylinders forsupport: ng thestandard Q. By operati4 are al.

ing the hand lever E, the pistons ternately ca isedto rise and descend,and wir is alternately compressedV in ond. cylinder Iand dischar; gedthrough the outlet valve into j the receiver C, and so out through theexit orifice into ghe tire, while the ascent of the other piston admitsair into the cylinder ready for cinipression. The whole of the lair isforced out of tlie cylinders into the reservoir at each down stroke ofthe pistons. `This effects a saving in power, because the air is notallowed to expand and follow the piston back on the return stroke whichdoes take place ir the fsa se of known tire-infiating ',pumps. Tn thewell known single cylinder tire-inflating; pumps, thevaction-isppulsative and the' whole ofthe air is forced in jerks through thevalve in the tire at the last porL tion of the down-stroke of thepiston, but

by the prese nt invention the air is charged into the receiveralmost-continuously, and

During the very short period when one 0r other ofthe pistons is noteoinl'n'essing, the air expandsy in the reteiver C, and the-delivery ofthe air handle I) is made in two parts, and the two part-s coupledtogether by a socket men'iber Y one end of which is riveted to one partofthe hand-le. while the other end is loeked to the other part ot' thehandleby a removah'le pin '.j Une part of the handle -iS thereforedetachable from the other part, which makes the apparatus nireconvenient for carrying.' A v The standard Q :1i-which the hand lever ispivotedis or eandie l'tted with a lifting jaek I in which theg'powerconsists of a nut ,R rotatable on a serew By thi?,l means,l thevapliaratus r-an he placed .between any eonvenient part of 4the vehivleand the ground, such as under the springs or wheel cap, and thus hyopel-ailingr the nut Rsthe apparatus is clamped rigid by the weight olfthe vehiele'resting on it, and'v enahling'the operator to work the hand.lever quite easily.

I, deelare thatI what] claim is i vIn' a portable tire inflating.r pump,the combination with two compression cylinders* open at the top, aeasing which Serves through the aperture M' still goes on. The: thedouhle purpose of an air receiver and hase plate upon which the saidcylinders are mounted, and aiworking piston in each n ylinder. of astandard. supported between the cylinders at thetop, a4 hand roe-kinglever piroted to the topof the Standarih ,onnoeting rodaeouljiling therocking` level' to the pistons at dianietrieally oppoite sides to thepivot, and a ,lifting jack fitted to the top of the standardsubstantially as deserihed, I

In witness whereof', I ha ve heren nto. si gned my naine this 24th dayof Mareh 1915, in the present-e of two subscribing witnesses.

.Joel-1 r11 un ELE 1Q fil nesws:

'l nouw Woon, (i. lhuoxn;

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